<template>
  <div
    :class="{ fullscreen: fullscreen }"
    class="tinymce_container"
    :style="{ width: containerWidth }"
  >
    <textarea :id="tinymceId" class="tinymce-textarea" />
    <div class="editor-custom-btn-container">
      <editorImage
        color="#1890ff"
        class="editor-upload-btn"
        @successCBK="imageSuccessCBK"
      />
    </div>
  </div>
</template>

<script>
/**
 * docs:
 * https://panjiachen.github.io/vue-element-admin-site/feature/component/rich-editor.html#tinymce
 */
// import editorImage from "./components/EditorImage";
import editorImage from "./components/myeditor";
import plugins from "./plugins";
import toolbar from "./toolbar";
import load from "./dynamicLoadScript";

// why use this cdn, detail see https://github.com/PanJiaChen/tinymce-all-in-one
const tinymceCDN =
  "https://cdn.jsdelivr.net/npm/tinymce-all-in-one@4.9.3/tinymce.min.js";

export default {
  name: "Tinymce",
  components: { editorImage },
  props: {
    id: {
      type: String,
      default: function() {
        return (
          "vue-tinymce-" +
          +new Date() +
          ((Math.random() * 1000).toFixed(0) + "")
        );
      }
    },
    value: {
      type: String,
      default: ""
    },
    toolbar: {
      type: Array,
      required: false,
      default() {
        return [];
      }
    },
    menubar: {
      type: String,
      default: "file edit insert view format table"
    },
    height: {
      type: [Number, String],
      required: false,
      default: 360
    },
    width: {
      type: [Number, String],
      required: false,
      default: "auto"
    }
  },
  data() {
    return {
      hasChange: false,
      hasInit: false,
      tinymceId: this.id,
      fullscreen: false,
      languageTypeList: {
        en: "en",
        zh: "zh_CN",
        es: "es_MX",
        ja: "ja"
      }
    };
  },
  computed: {
    containerWidth() {
      const width = this.width;
      if (/^[\d]+(\.[\d]+)?$/.test(width)) {
        // matches `100`, `'100'`
        return `${width}px`;
      }
      return width;
    }
  },
  watch: {
    value(val) {
      if (!this.hasChange && this.hasInit) {
        this.$nextTick(() =>
          window.tinymce.get(this.tinymceId).setContent(val || "")
        );
      }
    }
  },
  mounted() {
    this.init();
  },
  activated() {
    if (window.tinymce) {
      this.initTinymce();
    }
  },
  deactivated() {
    this.destroyTinymce();
  },
  destroyed() {
    this.destroyTinymce();
  },
  methods: {
    init() {
      // dynamic load tinymce from cdn
      load(tinymceCDN, err => {
        if (err) {
          this.$message.closeAll();
          this.$message.error(err.message);
          return;
        }
        this.initTinymce();
      });
    },
    initTinymce() {
      const _this = this;
      window.tinymce.init({
        selector: `#${this.tinymceId}`,
        language: this.languageTypeList["zh"],
        height: this.height,
        body_class: "panel-body ",
        object_resizing: false,
        toolbar: this.toolbar.length > 0 ? this.toolbar : toolbar,
        menubar: this.menubar,
        menubar: false, // 隐藏菜单栏
        plugins: plugins,
        fontsize_formats: "12px 14px 16px 18px 24px 36px 48px", // 设置字体选项
        end_container_on_empty_block: true,
        powerpaste_word_import: "clean",
        code_dialog_height: 450,
        code_dialog_width: 1000,
        content_style:
          "img {max-height: 100vh} body {color: #333333;line-height: 1.5em;margin: 10px}div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,menu,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,main,menu,nav,output,ruby,section,summary,time,mark,audio,video {margin: 0;padding: 0;border: 0;font-size: 100%;vertical-align: baseline;line-height: 1.5em}",
        advlist_bullet_styles: "square",
        advlist_number_styles: "default",
        imagetools_cors_hosts: ["www.tinymce.com", "codepen.io"],
        default_link_target: "_blank",
        link_title: false,
        nonbreaking_force_tab: true, // inserting nonbreaking space &nbsp; need Nonbreaking Space Plugin
        init_instance_callback: editor => {
          if (_this.value) {
            editor.setContent(_this.value);
          }
          _this.hasInit = true;
          editor.on("NodeChange Change KeyUp SetContent", () => {
            this.hasChange = true;
            this.$emit("input", editor.getContent());
          });
        },
        setup(editor) {
          editor.on("FullscreenStateChanged", e => {
            _this.fullscreen = e.state;
          });
        },
        convert_urls: false
      });
    },
    destroyTinymce() {
      const tinymce = window.tinymce.get(this.tinymceId);
      if (this.fullscreen) {
        tinymce.execCommand("mceFullScreen");
      }

      if (tinymce) {
        tinymce.destroy();
      }
    },
    setContent(value) {
      window.tinymce.get(this.tinymceId).setContent(value);
    },
    getContent() {
      window.tinymce.get(this.tinymceId).getContent();
    },
    imageSuccessCBK(arr) {
      arr.forEach(v =>
        window.tinymce
          .get(this.tinymceId)
          .insertContent(`<img class="wscnph" src="${v.url}" >`)
      );
    }
  }
};
</script>

<style lang="scss">
.tinymce_container {
  position: relative;
  line-height: normal;
  border: 1px solid #dcdfe6;
  ::v-deep {
    .mce-fullscreen {
      z-index: 10000;
    }
  }
  // 字体大小选择框的长度
  .mce-txt {
    width: 50px !important;
  }
  // 去除底部阴影
  .mce-panel {
    box-shadow: none;
    border: 0;
  }
  // 去除多余边框
  .mce-top-part {
    border-bottom: 1px solid #dcdfe6;
    &::before {
      display: none;
    }
  }
}
// 修改字体大小下拉框样式
.mce-menu.mce-animate {
  width: 76px !important;
  min-width: 76px !important;
  > div {
    width: 76px !important;
  }
}

// 修改插入链接打开方式下拉样式
.mce-menu.mce-fixed {
  width: 318px !important;
  > div {
    width: 318px !important;
  }
}

.tinymce-textarea {
  visibility: hidden;
  z-index: -1;
}

.editor-custom-btn-container {
  position: absolute;
  // 修改后的定位
  top: 10px;
  left: 508px;
}

.fullscreen .editor-custom-btn-container {
  z-index: 10000;
  position: fixed;
}

.editor-upload-btn {
  display: inline-block;
}

// 底部文字的隐藏
.mce-statusbar {
  > .mce-container-body {
    .mce-path.mce-flow-layout-item.mce-first,
    .mce-wordcount.mce-widget.mce-label.mce-flow-layout-item,
    .mce-branding.mce-widget.mce-label.mce-flow-layout-item.mce-last {
      display: none;
    }
  }
}
</style>
